BECKHOFF CU8801-0000 - Manual (Page 11)

Installation
3.2 Mounting/ Demounting
The USB-Extender-Tx CU8801-0000 can be snapped onto a 35 mm mounting rail conforms
to EN 50022:
To release the CU8801-0000 from the mounting rail:
1. first pull the lug at the bottom of the hub downwards by using a screw driver (1)
2. then pull the hub from the mounting rail (2).
CU8801-0000 9